barkley-



March 29 1927.

F. w. BARKLEY CARRYING-OVER MECHANISM FOR CALCULATING MACHINES 2 Sheets-sluwe?l l Filed March 18, 1921 Y 1,622,563 March 29 1927 F. w. BARKLEY CARRYING-OVER MECHANISM FOR CALCULATING MACHINES Filed Maron 18. 1921 2 sheets-sheet Ffg. 3.

In Mentor; Fred W Bark/2 9.

Patented Mar. 29,

llJNl'I'liDpV 'STATES v1 ..'ra1\1'1I OFFICE.

Q FRED W. BARKLEY, OF WINTHROP, MASSACHUSETTS, .ASSIIGNORA TO .ALBERTO IBABKLEY, 0F SPAINTEDJTOST, NEW YORK. i

ARRYNG-OVER MEGHAN'ISM FOR CALCULATIIAQ'G MACHINES.

Application filed March 18, 1921. n Serial N o. 453,356.

The invention. relates to 'calculating machines of the type having a suitable selecting mechanism, an operating mechanism and an overrotating device for obtaining a certain calculationv which can be indicated on one or more rotary registering dials tol obtively in either'direction offrotation .o the' operating members.

The object of theinventionis to provide 'a calculating machine having an--etfec'tive rotating unit forallowing certain numerals to be selected for obtaininga certain definite calculation adapted to be usedwith a Vnovel carrying-over mechanismto allow the calculation to be carried over from one registering dial to the nextin the orderv ten inv either direction which is durable', practical, noiseless and cheap to manufacture.

A complete description of a calculating machiney and my improvements areas .fol-- lows: .reference beind' made to the accompanying drawings otD which- Y Figure 1 is a longitudinal section of the A casing showing the operating mechanism.

Figure 2 isa partial longitudinal section,

of the machine showing the keys, setting up and selecting mechanisms. Figure 3 is a partial plan view of the machine with the cove'r taken 0E showing the internal mechanism. l j

Figure 4 is a side view of the carryingover mechanism. 1

Figure v5 is a front' elevation in partial diagrammatic form showing-the carrying: over mechanism.

Figure 6 is a side view of the same. Figure 7 is a plan view of the carryingover mechanism. i

Figure 8 shows the carrying-over mechanism in-the operating position. Figure 9 is a diagrammatic view showing the selecting strip. A The machine is provided with operating keys ranging from 0, 1, 2, 8, 4, 5, 6,' 7, 8 and 9 inclusive, which are connected to, and set up the calculating mechanism. The calculating mechanism is located in a suitable casing- 10, having acover 11, and a transverse sliding carriage 12. vFormed on the sliding carriage 12 is an operating finger 13, for lifting the carriage and moving it l back and forth acrossl the machine and calculating mechanism in accordance withthe calculating operations required. Also formed on the carriage 12 is a catch 14 which cooperates with the heles 15 formed in the'cover 1l, which registers with the set of dial and mechanism required to perform a certain calculation. Mounted in the casing `1 1 are. several sets of operating keys.

. Six sets are Acommonly used but as many sets can b e used as is necessary in accordance with the size of the machine. Each set of .akeysj operates the numeral from zero to nine inclusive, and each succeedm set will be indicated by numerals andsma l letters a, b

c, etc. As each set of keys and operating parts are identical in construction, a description of one -will be sufficient. of keys will give a range of calculation from l to 999,999I and further calculations may be obtained by manipulating the carriage 12.

When the numerals are selected to be calculated the results are obtained by rotating the crank 16. To obtain a result in addition and multiplication the crank is turned Y in one direction, and for subtraction and .division the crank is turnedin the opposite direction'. The result of the calculation is The six sets I shown through the window 17, formed in the carriage 12. To clear out the figured calculation, the dials are returned to the zero position by the hande 18, which controls the clearout mechanism, the numeral showing through the windows 17 indicate the numeral result determined by the keys from 1 to 9 inclusive and the 'operation of the crank-16m relation to a given formula to be calculated. Each of the six sets of selecting keys are marked with ten numerals ranging from zero to nine, which controls the rotating registering dial and each succeeding dial marking in the next order of ten in either direction. The mechanism for carrying-over the. calculation in the order ot ten from one dial tothe next succeeding one, is novel and is the main embodiment of my invention rThe keys, zero to nine, a, b, c, etc., are mounted in a housing se,- cured to the cover 11 which allows the keys` to be readily placed in position or taken out as the condition" requires. The keys are guided'in their verticalmovement by the cover 11 and plate 19, and are constantly pressed upward by the spring 20, that is 1f the keys are pressed downward by theoperator, it operates the setting-up mechanism and is locked temporarily in position and when released the keys and` setting-up mechanism will be returned to the 1noperative position by the 'spring 20.

When' akey is pressed downward by the operator in a calculating operation it is automatically locked in position until the next,

' part of the key housing is a stationary plate 21 on which part of setting-up mechanlsm is secured. Superimposed on the stationary plate 21 is a sliding plate 22 having `10 slots 23 through which the ten keys extend for operating the setting mechanism. Formed on the keys from-one to nine inclusive are cam surfaces 24, of different lengths Which l are designed to-give a variation in travel to the sliding plate 22, which in turnoperates the setting-upmechanism. Each of the nine keys has a cam surface of suiiicient dimension to move the sliding plate 22 a distance 4corresponding to the numeral used, that is, ke 1 would move the shortest distance w ich moves the `sliding plate suiiiciently to move the setting-up mechanism a correspondingv amount to bring the numeral 1 to view on the registering dial.

When the numeral 9 is used the sliding plate 22 is moved the longest distance which would cause the setting-up mechanism to be moved a corresponding amount to bring the numeral 9 to view on the ,registering dial. All intervening numerals, when used, would cause the setting-up mechanism to be moved correspondingly to bring the numeral to view in the registering dial. y

Mounted on the stationary-plate 21 are the \bell cranks 25 a, b, c, etc., corresponding to the number of banks of keys used which is ogjerated by the sliding plate 22 a, b, c, etc. T eKbell crank 25 is fulcrumed at 26 on the stationary plate 21.

Integral with the bell crank 25 is a projection 27, which cooperates with the sliding plate 22 for swinging the bell crank 25 into the designated position determined by the operation of any one of the-keys from 1 to 9 inclusive. The swinging movement of the bell crank 25 imparts an axial movement to the gear. 28, mounted on the shaft 29. The gear 28 rotates on the shaft 29 and alsois free to move axially thereon within the range of the cage gear 30. This range of movement allows the selecting mechanism to operate within the range of numeral from 1 to 9 inclusive. The selecting mechanism is controlled by the operating handle 16, shattl 31, which is a part of the handle 16, bevel gears 32 and 33. Shaft4 34 which is provided With suitable bearings, bevel gears 35 -and 36, and shaft 37. The shaft 37 extends across the machine and is adapted to receive a plurality lof disks 38, on which a part of the selecting mechanism is mounted. The part of the selecting mechanisnrmounted on the disks, 38, consists of nine strips 39, made preferably' of metal and each strip is indicated by 1, 2, 3, 4, 5, 6, 7, 8 and 9 corresponding to the keys operated to obtain a certain operation. The nine strips 39, etc., are each provided with a `depression 40, each strip havingV a tooth of different length. Each one of these strips will mesh with a corresponding tooth on the gear 28, and it' the said gear '-28 is moved axially along the shaft by the key 5, strips 1 to 5 inclusive of strips 39 if rotated will mesh with a corresponding number of teeth on the gear 28, thereby moving the distance of five teeth. If any one of the keys from 1 to 9 inclusive is 0perated itl will move the gear 28 axially on the shaft 29 into a position to be operated by the correspondingstrip indicated. `When a numeral is selected the key'bearing that numeral will be pressed downwardly, thereby, moving the gear 28 axially on the shatt 29 to a position corresponding to the key selected. The operating handle is then rotated in the direction desired which causes the disks 38 and strips 39 to rotate one revolution. By this operation the strips 39 corresponding to the key depressed causes the gear 28 to rotate the distance or numeral designated. The rotating movement of the gear 28 iscommunicated to the registering dial 41, 41, 4l, 41, etc., through the cage gear 30, intermediate gear 42 and dial gear 43 thereby showing the result ot' the calcula- .tion 011 that particular dial 41, 4111,41", 41C, etc. A suitable overthrow check device is provided to prevent the dial from over rotating the position designated by the keys, and consists of Aa pawl lover 44 loosely mounted ou the shaft. 45 and is free to bc controlled by thc cani surfaces en tlie disk 38, which allows the pawls 46 to disengage the gear 42 and allows the' operation to take place. In thc reverse operation th.e shaft 45 and arm 47 turns in the directi'n to engage the pin 48 and litt thc pawl lever 44 away from the cam surface on the disk 3S and transfer the stress ot the over rotating operation to the pawl 46 and spring 49.

When the calculation requires a greater numeral than nine on anyone dial a carryover mechanism is provided to automatilCh cally carry over the result to the next dial crank 16 twice, thereby turning the dial 41a' one revolution and registering zero, and also turn the next dial which will register one,

thereby making a total reading of ten.'

The, embodiment of my invention liesA in providing a device of this character which is accurate in operation and cheap to manufacture. The invention can best be understood by referring to Figures 4, 5, 6 and 7. Secured to the gear 43 is a pin 50, Figure 5 which is brought into action in addition and multiplication when the gear 43 is rotatedv to the last tooth or nine-tenths of its revolution. In this position further movement of the gear 43 on which the pin 50 is located, engages the bevel end 51`of the arm 52, thereby carrying with it the lever 53 having the projection 54 integral therewith, into the path of the cam 55 of the carrying-over finger 56 which-causes it to 'engage the intermediate gear 42, which in turn operates the dial gear 43 and dial 41 of the next higher order'registering the amount.

; In subtraction and division the dial gear 43 travels in the opposite direction, and the pin 50 instantly engages theopposite side of the bevel surface 51 on the arm 52, forc- 'ing itdownwardly for the carrying-over operation'. The lever 52 is integral -with the lever 53, the two levers being connected by the crosspiece 57, The downward moveent of the lever 52 is communicated to the lever 53 and causes it to be released from the spring catch 58, at the same time allowing the projection 54, formed on the lever 53 to drop -in'to the path of the carryingover finger 56. The spring catch' 58 is secured to the stationary collary 60 by a screw.

The carrying-over finger 56 is pivotally secured to the'disks 38v as shown in`Figures 4, 5 and 6. 'The portion of' the carryingover mechanism extends through the disk 38 and is pivoted through the lug 61, Figure 6, suicient clearance being provided to allow the member tol swing upwardly.

Extending across to the next-disk is an arm v62, which is held from sidewise moyements vby the slot 63, Figure 5, but is free to move Vupwardly to the height of the said slot 6 3 as-shown in Figure 5. The upper lparto the device is formed into two bevel cam surfacer-zv 55 in the form of. the letter A. In-

tegral with this is the tooth portion 66 which engages the gear 43 of the next set,-

that is, when the lever 48 drops down .to the position shown 1n Figure 8, the b evel cam surfaces'55 wipes against it `and kcauses the tooth portion 66 to move in the path of rotation to engage the tooth of? the-gear 43 lof the next dial gear 42A. Formed in the disk 38 is an offset projection 67 which, in its path of rotation, comes into contact with the projection 54 formed'on the lever 53, whieh forces it back into the spring catch 58 as shown in Figure 4.

All 'operating parts of the machine work the same in bothdirections,;with the exception of the over-rotating check and the carrying-over mechanism, the latter being the embodiment of my invention. In the reverse position a duplicate carrying-over mechanism 56 is employed. The construction and voperation vof the carrying-over mechanism is identical, as -it is set in a position in the disk to allow the carrying-over operation to ,take place at theproper time.

In the reverse operation, which is used i'n subtraction and division calculations, the carrying-over mechanism is located in five of the ldisks. In order to-prevent all five of them fron operating together, they are set in a spiral relation on the disk and in relation .'to themselves, so that if one carrying-over mechanism operates at a certain time, the next one will be several degrecs before or after,according to the direction ofrotation.

In operation, calculations are performed in addition, subtraction, multiplication and division. These calculations call for distinct and complete operation of the mechanism, for determining the result of the calculation. A standard adding machine keyboard is used for setting up numbers 'to be added, subtracted and divided and forms j part of the selecting mechanism. In proper lil() relation to the keyboard is a suitable crank i wise. In examples l of multiplication and addition the crank isturned inv one direction, and for subtraction and division the crank is turned in the opposite direction. When the zero keys are pressed downwardly it is only for releasing the other keys in the same bank-which have been used. The carriage 12, 'having the result vdials mountedtherein, may be shifted to the right or to the left with easeand accuracy to obtain theresults in conjunctionwith the .selecting and operating meehanism.- To obtain ,a-result in addition or multiplication any of the keys from 1 to9 inclusive, in as many sets of banks of keys as desired maybe pressed downwardly and held by a suitable lock until the .other -key isioperated in the same bankl of keys when it is unlocked or when it is clearly out after the calculating operation has takenlace. This downward movement of the eys in their respective bankcauses the sliding plate 22', to move tothe right, thereby imparting a swinging movement to the bell crank lever 25. As the bell crank lever swings on its pivot it causes the selecting gear 28 to move axially within the range limited by the cage gear 30. The operating crank 16 is then turned one revolution which causes the disk 38 to turn in the directionof rotation of the gear 28 imparts a proportional movement of rotation to the cage gear'42, intermediate gear 43, 'dial gear 44, and dial 41, thereby showing the result or numeral through window 17. When any of the strip bars from 1 to 9 inclusive are in line to engage the gear 2 8, the over-rotating lever 44 drops down into one-of the lower cam surfaces formed on the disk 38, to cause the pawl 44 to move out of the path of rotation of the gear 42, thereby allowing the .whole train of gears and dial 41 to rotate as designated. Further rotation of the disk 38 will cause the over-rotating check lever to be raised to the upper cam surface, and the'gears are again locked in position until the next operation.

. In subtraction and division the operating crank 16 is turned in the opposite direction. One revolution .causes the disks 38 and selecting bars from 1 to 9 inclusive 'to rotatein the opposite direction as Well as f all the other rotating members thereby showing the predetermined results through the window 17 of the carriage 12. During the reverse operation, the over-rotating check is again brought into action by a special device which causes the shaft 4.5 to be rotated suflicientlytocause the pin 47 to turn and engage the pin 48 on the pawl lever 44, and liftv it out of the path ofthe cam surfaces formed on the disk 3 8, thereby holding it rigidly in position and transferring the overrotation friction of the pawl to the spring 49 the tension of which is sufficient to prevent it from over-rotating but allows it to rotate when power is used. f

When the calculating operation. is carried over from one registering dial to the neXt in the order of ten, a special device is pro- .vided constituting the main embodimentof my invention.v Vhen the carryingfover mechanism reaches a certain-position, the ,tooth 9 of dial gear 43 hasv reached a point where the result is to be carried over to` the next dial by my special device. The carryingoveroperation depends first on the locatedon tooth '9 of the gear 43.

58 permitting it to drop to the position filed March 18, 1921,,Seri'al rjpin 50, he ro-I tating movement of the pin 50 causes it to Wipe against the bevel surface of the yoke shown in Figure 8 for moving the gear the predetermined distance to show the designated calculation. In the'reverse movement the pin 46 engages' the opposite side of the kbevel surface formed in the arm 52, forcing it down in the same manner as before to complete the carrying-over operation. By this movement the projection is brought into the Path 0f the, gear causing the pivot to swing outwardly into the path of the gear, thus imparting a. rotating lmovement thereto and carrying-over the result of the operation to the next dial.

In the reverse carrying-over movement the mechanismv is the same except a duplicate carrying-over lever is used at a different time to perform the reverse operation.

In accordance withtheprovisions of the patent statute I have described the principles of operation of my invention together with the apparatus I now consider to represent the best embodiment thereof, butI desi e to have it understood that' the apparatus shown is only an fillustration and that the invention may be carried out by other means.

iml y The subject matter disclosed, but not` claimed in the present application forms the subject matter of a co-pendino application,

{umber' 453,- 357.

What I claimas by Letters Patent .of the United States is 1. In a calculating mechanism, the combination of a setting-up mechanism, a selecting mechanism, anda registering mechanism, a working shaft parallel to the shaft carry,-

newV and desire to secure ing the registering dial and.` intermediate gears, an over-rotating mechanism mounted on the shaft, a transfer arm also mounted on the shaft, a] means on the registering mechanism for operating-the l'transfer arm in one direction, a locking means for the transfer arm on the intermediate gear shaft, a means onthe transfer arm and t-he selecting mechanism for operating the next gear in the order of ten, and-means on the transfer arm and selecting mechanism for operating the transferxarm in ,the opposite direction.

2.- In a calculating machine the combina-- tion of a setting up mechanism, aselecting mechanism having' a plurality of disks, a'n l operatmg mechanism, and. a registering- 'mechanism, two stationary shaftsparallel to the shafts carrying the registering mechamsm, pins 'on the dial elements of the registering mechanlsnnlv vtransfer arms integral with eachother on one of the shafts onevof which arms co-operates with the pins forvv operating the said arm, a downwardly ex-` tending lug on the second of the arms, a detent spring on the other 'shaft co-operating with the second arm. for retaining both arms in an' operative or a non-operative'position, a finger pivotally secured to the selecting.

mechanism disks constantly spring pressed in one direction, a gear tooth integral with the finger, a double faced cam also integral with the finger acting against the spring and co-operating with the lug integral with the lever transfer arm for co-operating with the next dial in the order of ten, a V-shapedl tionary shafts, a detent means on .the other stationary shaft for retaining the transfer means in either an operative or a non-operative position, a finger on the' selecting disks constantly spring pressed in one direction, a gear -tooth integral with the finger, a double faced cam also integral with the finger act- -ing against the spring ,which co-operates with the transfer arm for'operating the next vdial in the order of ten. y

4. In a calculating machine the combination of a setting upmechanism, a selecting mechanism having a plurality of disks, and

an operating mechanism, two stationary shafts parallel to each other and to the shaft of the registering mechanism, pins on the dial e'lement, transfer arms integral with each other -on one of the shafts one of which co-operates with the pins for operating the said arm, a downwardly extending lug on one of the` arms. a detent spring on the other4 shaft co-operating with the other arm for retaining .both arms in an operative or a non-operative position, a finger pivotally secured to the selecting mechanism disks constantly spring pressed in one direction, a eary tooth integral with the linger, a double aced camv also integral with the linger acting against the spring and co-operating with the lug integral with the lever transfer arm for co-operating with the next dial in die order of ten, a V-shaped projection integralwith the' selec-ting mechanism disks l which engages V.the lug or lthe transfer -arm for restoring the said transfer a'rm to the non- Imechanism operating position after the operation is completed.

5. In a calculating machine, ajselecting mechanismQ including disks, registering mechanism including dials, anda carrying over mechanism including. an element to be operated by one of said dials, means on one of said disks to be engaged by said element following actuation thereof-by a dial, said disk-carried means when set being in position to Iactuatean independent dial.

6. In a calculating machine, a selecting including disks, registering mechanism including dials, a lever operated by one of said dials in a predetermined position lof the latter, a carrying over finger adapted to be moved to an operative position by said lever following operation of the latter,-and means on said finger to operate another dial in a succeeding operation of the registering mechanism.

7, In ya calculating machine, selecting mechanism, registering mechanism, a shaft, a transfer lever mounted on' the shaft and operative by the registering mechanism, a carrying-over finger carried by the selecting mechanism capable of being positioned tooperate the registering mechanism during movement ofthe selectlng mechanism, and a lcam on the leverv to engage and operatively position said finger.

v8. In a calculating machine selecting mechanism including disks, registering lmechanism including dials, a transfer lever ,.pivotally mounted on one of said disks and operative in a predetermined position of one f of the dials, a carrying-over finger carried 4by one of the disks and adapted to beY enfinger when set being in position to operate Vgaged and positioned by said lever,csaid one of said'dials, and means on the disk for l returning the lever tonormal position.

. 9; In a calculating machine, a carrying over mechanism including means 'to be operatively set by onel o f the dials, when such dial has reached a predetermined positin, and means4 carried by the selecting mechanism and movable therewith to be engaged by said first -mentioned means and operay tivel set to cooperate with thev next succeeding ial for advancing the registering mechmechanism being mounted for pivotal movementrelative thereto.

FRED W. 'BABKLEYr anism, the means carried `by the selecting' 

